是大于1,所以等于1是不行的!
y is the number of even integers from 40 to 60, inclusive, Y是40~60偶数的个数!个数!
画图,不能想当然
1.x^2=2
E里面,强调名词,到底是什么意思呀,好多题都是这样解释,求大神
A选项错误:it无指代对象,如果强行it指代on-line drugstores,逻辑意思不对
Nigeria 尼日利亚
死了在选项看不懂
还是得看懂文章才行
A,with her public statement可以表示她和宣称一起defused a situation
RON: examine the split between 'more ergonomic' and just 'ergonomic'. in this case, we must preserve the meaning of the original statement: the new design is more ergonomic than the old design. if we change this to just 'ergonomic', we're attaching an implication that the old design simply wasn't ergonomic (and that the new design, by contrast, is) - an unacceptable implication. that gets rid of answer choices c, d, and e right there.
叹气,看了大家的解释还是不懂。这题要是问削弱那肯定简单很多……
这题好绕。只能根据答案倒推逻辑,这个题目不是问从海里提取铀的成本有没有可能降低,而是问整件事有没有意义。评估这件事的首要考虑是做这件事到底有没有意义,而不是这件事里的东西可行不可行。如果陆地上的铀足够多的话,那何必去海水里提取呢?不用去海水里提取就更不用考虑它的成本问题了
理解逻辑,call和attract并列
动词是最直接的
narrowly self-sufficient 勉强自给自足,不是不能自给自足
设总金额是10a+b,小费就是2a
不懂,为什么要用had expected?
中点坐标:两点坐标相加除以2